Given what’s going on in this historic seller’s market, we may have to dust it off to showcase some homes that remain unsold while every other home out there’s getting multiple bids within a week or two of going on the market.

Most of the trinities currently listed for sale would probably qualify, but none more so than this very attractive Colonial expanded trinity on one of those charming little streets everybody loves in Washington Square West.

For the life of us, we can’t figure out why this home is still up for sale nearly six months after it was first listed.

Take a look at what it offers: A modern eat-in kitchen with up-to-date appliances and a tile floor, with French doors that open onto a decent-sized brick rear patio. A charming living room with a wood-stove fireplace, and a second fireplace, built-in bookshelves and cabinetry in the second-floor bedroom. A spacious deck behind the top-floor bedroom.

And the bathroom — c’mon now! When have you ever seen a marble-tiled spa bathroom with a Jacuzzi tub and separate shower in a trinity?

Look how well the original wide-plank pine floors have been maintained! See the romantic view that surrounds you as you lounge on the deck! Think how close you’ll be to all the wonderful restaurants and shops Wash West and the Gayborhood have to offer, on top of the culture on the nearby Avenue of the Arts!

Then tell us — someone please explain to us — why nobody’s snapped up this home yet. (Might it have been the agent? We do note that this listing is now in the hands of a pair of experienced and energetic agents we know who have a flair for creative marketing. We’ll check back in a month or two to see what happened.)

THE FINE PRINT

BEDS: 2

BATHS: 1

SQUARE FEET: 819

SALE PRICE: $310,000

OTHER STUFF: This home’s sale price was reduced by $10,000 on Nov. 29 after a pending sale fell through. The home also has an unfinished partial basement that can be used for storage or finished for additional living space.